The X1 External Power Supply is an ultra-low noise, discrete and fully regulated linear power supply, delivering an ultra-stable and super clean DC feed to other CH Precision products. It contains massive amounts of noise-filtering as well as an additional stage of power supply regulation that works in conjunction with the on-board regulation built into the connected unit, to increase DC stability and further reduce noise to a vanishingly low level. Compatible with the D1 CD/SACD Transport, C1/C1 Mono DAC/Controllers, P1 Phono-Stage and L1 Line-Stage, the X1 External Power Supply will dramatically improve the already impressive performance of these products, reducing system noise floor, increasing dynamic range, resolution, and speed of response, transparency, detail, and above all, musicality. Adding X1s to your system will bring intimacy, presence, tonal color and an unmistakable sense of life to your recordings – and the more X1s you add, the better it will get.Each X1 can be configured to run either one or (with a second, optional output card) two low-level products. But the X1 is also a crucial element in CH Precision’s scalable system topology, so that as you move each product towards a true dual-mono signal chassis configuration, you can use one X1 output or a dedicated X1 for each unit, delivering ultimate channel separation and musical performance.